Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Reexamination Certificate
2006-09-14
2010-02-02
Johnstone, Adrienne C (Department: 1791)
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
C152S540000, C152S541000, C152S543000, C152S546000
Reexamination Certificate
active
07654295
ABSTRACT:
A tire2comprises a tread4, a pair of sidewalls6extended almost inward in a radial direction from an end18of the tread4, a pair of bead cores8positioned on an inside in the radial direction of the sidewalls6, and a carcass10laid between both of the bead cores8along insides of the tread4and the sidewalls6. The carcass10includes a carcass ply20. The carcass ply20is turned up around the bead core8. The sidewall6has a lower layer34positioned on an outside in an axial direction of the carcass ply20and an upper layer36positioned on an outside in the radial direction of the lower layer34. The upper layer36has a hardness which is equal to or higher than 50 and is equal to or lower than 70. The lower layer34has a hardness which is equal to or higher than 70 and is equal to or lower than 100.
REFERENCES:
patent: 5385193 (1995-01-01), Suzuki et al.
patent: 2002/0162616 (2002-11-01), Bernard et al.
patent: 2004/0198890 (2004-10-01), Kanenari
patent: 0 755 811 (1997-01-01), None
patent: 2 624 442 (1989-06-01), None
patent: 2000-351306 (2000-12-01), None
Birch & Stewart Kolasch & Birch, LLP
Johnstone Adrienne C
Sumitomo Rubber Industries Ltd.
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